Performance Series Tankless Electric RETEX-8, RETEX-11, RETEX-13 kW
MODEL RETEX-08 (derated 208V performance)*
Heating Chamber - 5 Years
Parts - 1 Year
- UEF up to .96
- 8 kW model flow rate up to 2.0 GPM
- 11 kW model flow rate up to 2.7 GPM
- 13 kW model flow rate up to 3.2 GPM
- Digital thermostatic temperature controls ranging from 80°F - 140°F
- Copper heat exchanger
- Side ½” CF water connections
- Warranty 5 Years - Leaks, 1 Year – Parts
Select GPM
5
GPM
Models
SKU RETEX-08 (derated 208V performance)*
Warranty Years 5
Model Performance Series Tankless Electric RETEX-8, RETEX-11, RETEX-13 kW
GPM 5
Depth 3.63"
Height 12.63"
Width 8.25"
Single Shower Minutes 9999
Number Back To Back Showers 9999
Install Location Indoor
High Efficiency Yes
Kilowatts 6
Water Connector Size 32 32
Amps 28
Recommended Breaker Size 1x40
Voltage 208
RecommendedWireSize 8
Maximum Flow GPM 5
Adjustable Thermostat False
Performance tankless electric water heaters offer continuous hot water quick and on demand for single point-of-use or multiple applications
Performance Features- On demand, consistent and endless hot water
- Compact and stylish with digital temperature control in increments of 1°F ranging from 80°F to 140°F*
- 99.8% Energy efficient
- Robust copper immersion heating elements with brass top increases durability and are threaded for easy replacement
- Simple Installation
- Digital temperature display
- External controls to adjust temperature in increments of 1°F*
- Whole-Home – up to 6 GPM
- Water-Saver Shower Head – 1.5 GPM
- Standard Shower Head – 2.0 GPM
- Standard Hand Sink – 0.5 GPM
- Kitchen Sink – 1 to 2 GPM
- Bath Tub – = 4 GPM
- Dishwasher – 1 to 2 GPM
- Washing Machine – 1 to 1.5 GPM
Heating Chamber - 5 Years
Parts - 1 Year
More Residential Rheem Products
Find additional documentation by viewing these related products.
Performance Series Tankless Electric RETEX - 04T, 06T kW
- Saves Space – Up to 98% smaller than a standard electric water heater
- Saves Energy – Zero standby heat loss when installed at the point-of-use
- Efficient Design – UEF up to .95 and advanced self-modulating technology only consumes the power needed to satisfy hot water demand
- Durable copper sheathed heating elements are replaceable, easy to maintain and improves service life
- Digital thermostatic temperature controls in 1-degree increments ranging from 80°F - 140°F (26°C - 60°C)
- Designed to be mounted in an upright position with the inlet and outlet water connections at the bottom of the unit for ease of installation
- Venting is not required to operate, simplifying the installation process compared to a gas tankless water heater
- Includes two optional 0.35 GPM aerators (flow restrictors) for optimal temperature output and performance
Performance Series Tankless Electric RETEX - 04T, 06T kW
- Saves Space – Up to 98% smaller than a standard electric water heater
- Saves Energy – Zero standby heat loss when installed at the point-of-use
- Efficient Design – UEF up to .95 and advanced self-modulating technology only consumes the power needed to satisfy hot water demand
- Durable copper sheathed heating elements are replaceable, easy to maintain and improves service life
- Digital thermostatic temperature controls in 1-degree increments ranging from 80°F - 140°F (26°C - 60°C)
- Designed to be mounted in an upright position with the inlet and outlet water connections at the bottom of the unit for ease of installation
- Venting is not required to operate, simplifying the installation process compared to a gas tankless water heater
- Includes two optional 0.35 GPM aerators (flow restrictors) for optimal temperature output and performance
Professional Classic Series Tankless Electric RTEX-13 kW
2.3-2.3 GPM
- UEF up to .96
- Flow rate 1.3 - 2.3 GPM
- Durable, lightweight engineered polymer shell does not rust or corrode.
- Digital thermostatic temperature controls in 1-degree increments ranging from 80°F - 140°F (26°C - 60°C)


